Hp Compaq PB994A Battery
4400mAh, 10.8V, Li-ion Hp Compaq PB994A battery Replacement

One of three people found the following review helpful:

Will the battery performance degrade over time? The storage capacity of a notebook PC HP Compaq PB994A battery will degrade over time based upon notebook usage. Degradation is a normal condition of all rechargeable HP battery PB994A and is not limited to notebook PCs or other products. If the notebook is used on HP Compaq PB994A battery power often, requiring one or more recharges per day, the battery will experience a high degree of degradation and will need to be replaced sooner than a battery that is used occasionally. Also, temperature and humidity impact the storage capacity of a battery for HP Compaq PB994A. It is the best store for the Laptop/notebook.
Under normal operating conditions, a battery should perform well for over a year, but it will hold less of a charge every time it is recharged. The Battery Check utility validates that every battery is operating normally by checking the condition of the cells of the HP Compaq PB994A laptop battery. The Health status will change to " Replace " if the cells are not functioning normally.

Defective product(s)

• All our products have a one-year warranty. Defective products may be replaced if returned a year since the date of purchase. If this HP Compaq PB994A Batteries do not work properly, please contact our customer service department first to resolve your problem. Do not return goods directly to us without getting a RMA number. It is difficult for us to find out your transaction record and this may result in delaying exchange or refund process.
• Defective products must be returned within 30 days since the issue date of RMA. Otherwise, no replacement or refund will be made.
• If the warranty expires or products are misused, it will be declared void. The original shipping, handling charges and return postage will not be refunded. It is not acceptable to bring the defective item for exchange in person.